What to do if you have been banned for no apparent reason?

My account user name is genderfree. I posted a test comment just now and I logged out. I cannot see the comment. I read somewhere on here recently that when pages start loading very slowly when you are logged in, chances are your account has been banned.

This is the account: http://news.ycombinator.com/user?id=genderfree

I don't understand what is happening. I heard bannings occur when users ignore the rules. I don't believe I have broken any. There is no way to contact anyone about this so forgive me for posting.

Thank you for listening.